btrfs-progs v4.4

usage: btrfs [--help] [--version] <group> [<group>...] <command> [<args>] btrfs subvolume create [-i <qgroupid>] [<dest>/]<name> Create a subvolume btrfs subvolume delete [options] <subvolume> [<subvolume>...] Delete subvolume(s) btrfs subvolume list [options] [-G [+|-]value] [-C [+|-]value] [--sort=gen,ogen,rootid,path] <path> List subvolumes (and snapshots) btrfs subvolume snapshot [-r] [-i <qgroupid>] <source> <dest>|[<dest>/]<name> Create a snapshot of the subvolume btrfs subvolume get-default <path> Get the default subvolume of a filesystem btrfs subvolume set-default <subvolid> <path> Set the default subvolume of a filesystem btrfs subvolume find-new <path> <lastgen> List the recently modified files in a filesystem btrfs subvolume show <subvol-path> Show more information of the subvolume btrfs subvolume sync <path> [<subvol-id>...] Wait until given subvolume(s) are completely removed from the filesystem. btrfs filesystem df [options] <path> Show space usage information for a mount point btrfs filesystem show [options] [<path>|<uuid>|<device>|label] Show the structure of a filesystem btrfs filesystem sync <path> Force a sync on a filesystem btrfs filesystem defragment [options] <file>|<dir> [<file>|<dir>...] Defragment a file or a directory btrfs filesystem resize [devid:][+/-]<newsize>[kKmMgGtTpPeE]|[devid:]max <path> Resize a filesystem btrfs filesystem label [<device>|<mount_point>] [<newlabel>] Get or change the label of a filesystem btrfs filesystem usage [options] <path> [<path>..] Show detailed information about internal filesystem usage . btrfs balance start [options] <path> Balance chunks across the devices btrfs balance pause <path> Pause running balance btrfs balance cancel <path> Cancel running or paused balance btrfs balance resume <path> Resume interrupted balance btrfs balance status [-v] <path> Show status of running or paused balance btrfs device add [options] <device> [<device>...] <path> Add a device to a filesystem btrfs device delete <device> [<device>...] <path> btrfs device remove <device> [<device>...] <path> Remove a device from a filesystem btrfs device scan [(-d|--all-devices)|<device> [<device>...]] Scan devices for a btrfs filesystem btrfs device ready <device> Check device to see if it has all of its devices in cache for mounting btrfs device stats [-z] <path>|<device> Show current device IO stats. btrfs device usage [options] <path> [<path>..] Show detailed information about internal allocations in devices. btrfs scrub start [-BdqrRf] [-c ioprio_class -n ioprio_classdata] <path>|<device> Start a new scrub. If a scrub is already running, the new one fails. btrfs scrub cancel <path>|<device> Cancel a running scrub btrfs scrub resume [-BdqrR] [-c ioprio_class -n ioprio_classdata] <path>|<device> Resume previously canceled or interrupted scrub btrfs scrub status [-dR] <path>|<device> Show status of running or finished scrub btrfs check [options] <device> Check structural inegrity of a filesystem (unmounted). btrfs rescue chunk-recover [options] <device> Recover the chunk tree by scanning the devices one by one. btrfs rescue super-recover [options] <device> Recover bad superblocks from good copies btrfs rescue zero-log <device> Clear the tree log. Usable if it's corrupted and prevents mount. btrfs restore [options] <device> <path> | -l <device> Try to restore files from a damaged filesystem (unmounted) btrfs inspect-internal inode-resolve [-v] <inode> <path> Get file system paths for the given inode btrfs inspect-internal logical-resolve [-Pv] [-s bufsize] <logical> <path> Get file system paths for the given logical address btrfs inspect-internal subvolid-resolve <subvolid> <path> Get file system paths for the given subvolume ID. btrfs inspect-internal rootid <path> Get tree ID of the containing subvolume of path. btrfs inspect-internal min-dev-size [options] <path> Get the minimum size the device can be shrunk to. The btrfs property get [-t <type>] <object> [<name>] Gets a property from a btrfs object. btrfs property set [-t <type>] <object> <name> <value> Sets a property on a btrfs object. btrfs property list [-t <type>] <object> Lists available properties with their descriptions for the given object. btrfs send [-ve] [-p <parent>] [-c <clone-src>] [-f <outfile>] <subvol> [<subvol>...] Send the subvolume(s) to stdout. btrfs receive [-ve] [-f <infile>] [--max-errors <N>] <mount> Receive subvolumes from stdin. btrfs quota enable <path> Enable subvolume quota support for a filesystem. btrfs quota disable <path> Disable subvolume quota support for a filesystem. btrfs quota rescan [-sw] <path> Trash all qgroup numbers and scan the metadata again with the current config. btrfs qgroup assign [options] <src> <dst> <path> Assign SRC as the child qgroup of DST btrfs qgroup remove <src> <dst> <path> Remove a child qgroup SRC from DST. btrfs qgroup create <qgroupid> <path> Create a subvolume quota group. btrfs qgroup destroy <qgroupid> <path> Destroy a quota group. btrfs qgroup show -pcreFf [--sort=qgroupid,rfer,excl,max_rfer,max_excl] <path> Show subvolume quota groups. btrfs qgroup limit [options] <size>|none [<qgroupid>] <path> Set the limits a subvolume quota group. btrfs replace start [-Bfr] <srcdev>|<devid> <targetdev> <mount_point> Replace device of a btrfs filesystem. btrfs replace status [-1] <mount_point> Print status and progress information of a running device replace btrfs replace cancel <mount_point> Cancel a running device replace operation. btrfs help [--full] Display help information btrfs version Display btrfs-progs version Use --help as an argument for information on a specific group or command.